serverpreparedstatement.java

mysql5.0 JDBC 驱动 放在glassfish或者tomcat的lib文件夹下就可以了

							ProfilerEvent.TYPE_EXECUTE,
							"", this.currentCatalog, //$NON-NLS-1$
							this.connectionId, this.statementId, -1, System
									.currentTimeMillis(), (int) (mysql
									.getCurrentTimeNanosOrMillis() - begin),
							mysql.getQueryTimingUnits(), null, new Throwable(),
							truncateQueryToLog(asSql(true))));
				}
	
				com.mysql.jdbc.ResultSetInternalMethods rs = mysql.readAllResults(this,
						maxRowsToRetrieve, this.resultSetType,
						this.resultSetConcurrency, createStreamingResultSet,
						this.currentCatalog, resultPacket, true, this.fieldCount,
						metadataFromCache);
				
				if (this.profileSQL) {
					long fetchEndTime = mysql.getCurrentTimeNanosOrMillis();

					this.eventSink.consumeEvent(new ProfilerEvent(
							ProfilerEvent.TYPE_FETCH,
							"", this.currentCatalog, this.connection.getId(), //$NON-NLS-1$
							getId(), 0 /* FIXME rs.resultId */, System.currentTimeMillis(),
							(fetchEndTime - queryEndTime), mysql
									.getQueryTimingUnits(), null,
							new Throwable(), null));
				}
	
				if (queryWasSlow && this.connection.getExplainSlowQueries()) {
					String queryAsString = asSql(true);

					mysql.explainSlowQuery(queryAsString.getBytes(),
							queryAsString);
				}
				
				if (!createStreamingResultSet && 
						this.serverNeedsResetBeforeEachExecution) {
					serverResetStatement(); // clear any long data...
				}
	
				
				this.sendTypesToServer = false;
				this.results = rs;
	
				if (mysql.hadWarnings()) {
		            mysql.scanForAndThrowDataTruncation();
		        }
				
				return rs;
			} finally {
				if (timeoutTask != null) {
					timeoutTask.cancel();
				}
			}
		}
	}

	/**
	 * Sends stream-type data parameters to the server.
	 * 
	 * <pre>
	 * 
	 *  Long data handling:
	 * 
	 *  - Server gets the long data in pieces with command type 'COM_LONG_DATA'.
	 *  - The packet recieved will have the format as:
	 *    [COM_LONG_DATA:     1][STMT_ID:4][parameter_number:2][type:2][data]
	 *  - Checks if the type is specified by client, and if yes reads the type,
	 *    and  stores the data in that format.
	 *  - It's up to the client to check for read data ended. The server doesn't
	 *    care;  and also server doesn't notify to the client that it got the
	 *    data  or not; if there is any error; then during execute; the error
	 *    will  be returned
	 *  
	 * </pre>
	 * 
	 * @param parameterIndex
	 *            DOCUMENT ME!
	 * @param longData
	 *            DOCUMENT ME!
	 * 
	 * @throws SQLException
	 *             if an error occurs.
	 */
	private void serverLongData(int parameterIndex, BindValue longData)
			throws SQLException {
		synchronized (this.connection.getMutex()) {
			MysqlIO mysql = this.connection.getIO();

			Buffer packet = mysql.getSharedSendPacket();

			Object value = longData.value;

			if (value instanceof byte[]) {
				packet.clear();
				packet.writeByte((byte) MysqlDefs.COM_LONG_DATA);
				packet.writeLong(this.serverStatementId);
				packet.writeInt((parameterIndex));

				packet.writeBytesNoNull((byte[]) longData.value);

				mysql.sendCommand(MysqlDefs.COM_LONG_DATA, null, packet, true,
						null, 0);
			} else if (value instanceof InputStream) {
				storeStream(mysql, parameterIndex, packet, (InputStream) value);
			} else if (value instanceof java.sql.Blob) {
				storeStream(mysql, parameterIndex, packet,
						((java.sql.Blob) value).getBinaryStream());
			} else if (value instanceof Reader) {
				storeReader(mysql, parameterIndex, packet, (Reader) value);
			} else {
				throw SQLError.createSQLException(Messages
						.getString("ServerPreparedStatement.18") //$NON-NLS-1$
						+ value.getClass().getName() + "'", //$NON-NLS-1$
						SQLError.SQL_STATE_ILLEGAL_ARGUMENT);
			}
		}
	}

	private void serverPrepare(String sql) throws SQLException {
		synchronized (this.connection.getMutex()) {
			MysqlIO mysql = this.connection.getIO();

			if (this.connection.getAutoGenerateTestcaseScript()) {
				dumpPrepareForTestcase();
			}

			try {
				long begin = 0;

				if (StringUtils.startsWithIgnoreCaseAndWs(sql, "LOAD DATA")) { //$NON-NLS-1$
					this.isLoadDataQuery = true;
				} else {
					this.isLoadDataQuery = false;
				}

				if (this.connection.getProfileSql()) {
					begin = System.currentTimeMillis();
				}

				String characterEncoding = null;
				String connectionEncoding = this.connection.getEncoding();

				if (!this.isLoadDataQuery && this.connection.getUseUnicode()
						&& (connectionEncoding != null)) {
					characterEncoding = connectionEncoding;
				}

				Buffer prepareResultPacket = mysql.sendCommand(
						MysqlDefs.COM_PREPARE, sql, null, false,
						characterEncoding, 0);

				if (this.connection.versionMeetsMinimum(4, 1, 1)) {
					// 4.1.1 and newer use the first byte
					// as an 'ok' or 'error' flag, so move
					// the buffer pointer past it to
					// start reading the statement id.
					prepareResultPacket.setPosition(1);
				} else {
					// 4.1.0 doesn't use the first byte as an
					// 'ok' or 'error' flag
					prepareResultPacket.setPosition(0);
				}

				this.serverStatementId = prepareResultPacket.readLong();
				this.fieldCount = prepareResultPacket.readInt();
				this.parameterCount = prepareResultPacket.readInt();
				this.parameterBindings = new BindValue[this.parameterCount];

				for (int i = 0; i < this.parameterCount; i++) {
					this.parameterBindings[i] = new BindValue();
				}

				this.connection.incrementNumberOfPrepares();

				if (this.profileSQL) {
					this.eventSink.consumeEvent(new ProfilerEvent(
							ProfilerEvent.TYPE_PREPARE,
							"", this.currentCatalog, //$NON-NLS-1$
							this.connectionId, this.statementId, -1,
							System.currentTimeMillis(), 
							mysql.getCurrentTimeNanosOrMillis() - begin, 
							mysql.getQueryTimingUnits(), null,
							new Throwable(), truncateQueryToLog(sql)));
				}

				if (this.parameterCount > 0) {
					if (this.connection.versionMeetsMinimum(4, 1, 2)
							&& !mysql.isVersion(5, 0, 0)) {
						this.parameterFields = new Field[this.parameterCount];

						Buffer metaDataPacket = mysql.readPacket();

						int i = 0;

						while (!metaDataPacket.isLastDataPacket()
								&& (i < this.parameterCount)) {
							this.parameterFields[i++] = mysql.unpackField(
									metaDataPacket, false);
							metaDataPacket = mysql.readPacket();
						}
					}
				}

				if (this.fieldCount > 0) {
					this.resultFields = new Field[this.fieldCount];

					Buffer fieldPacket = mysql.readPacket();

					int i = 0;

					// Read in the result set column information
					while (!fieldPacket.isLastDataPacket()
							&& (i < this.fieldCount)) {
						this.resultFields[i++] = mysql.unpackField(fieldPacket,
								false);
						fieldPacket = mysql.readPacket();
					}
				}
			} catch (SQLException sqlEx) {
				if (this.connection.getDumpQueriesOnException()) {
					StringBuffer messageBuf = new StringBuffer(this.originalSql
							.length() + 32);
					messageBuf
							.append("\n\nQuery being prepared when exception was thrown:\n\n");
					messageBuf.append(this.originalSql);

					sqlEx = ConnectionImpl.appendMessageToException(sqlEx,
							messageBuf.toString());
				}

				throw sqlEx;
			} finally {
				// Leave the I/O channel in a known state...there might be
				// packets out there
				// that we're not interested in
				this.connection.getIO().clearInputStream();
			}
		}
	}

	private String truncateQueryToLog(String sql) {
		String query = null;
		
		if (sql.length() > this.connection.getMaxQuerySizeToLog()) {
			StringBuffer queryBuf = new StringBuffer(
					this.connection.getMaxQuerySizeToLog() + 12);
			queryBuf.append(sql.substring(0, this.connection.getMaxQuerySizeToLog()));
			queryBuf.append(Messages.getString("MysqlIO.25"));
			
			query = queryBuf.toString();
		} else {
			query = sql;
		}
		
		return query;
	}

	private void serverResetStatement() throws SQLException {
		synchronized (this.connection.getMutex()) {

			MysqlIO mysql = this.connection.getIO();

			Buffer packet = mysql.getSharedSendPacket();

			packet.clear();
			packet.writeByte((byte) MysqlDefs.COM_RESET_STMT);
			packet.writeLong(this.serverStatementId);

			try {
				mysql.sendCommand(MysqlDefs.COM_RESET_STMT, null, packet,
						!this.connection.versionMeetsMinimum(4, 1, 2), null, 0);
			} catch (SQLException sqlEx) {
				throw sqlEx;
			} catch (Exception ex) {
				SQLException sqlEx = SQLError.createSQLException(ex.toString(),
						SQLError.SQL_STATE_GENERAL_ERROR);
				sqlEx.initCause(ex);
				
				throw sqlEx;
			} finally {
				mysql.clearInputStream();
			}
		}
	}

	/**
	 * @see java.sql.PreparedStatement#setArray(int, java.sql.Array)
	 */
	public void setArray(int i, Array x) throws SQLException {
		throw SQLError.notImplemented();
	}

	/**
	 * @see java.sql.PreparedStatement#setAsciiStream(int, java.io.InputStream,
	 *      int)
	 */
	public void setAsciiStream(int parameterIndex, InputStream x, int length)
			throws SQLException {
		checkClosed();

		if (x == null) {
			setNull(parameterIndex, java.sql.Types.BINARY);
		} else {
			BindValue binding = getBinding(parameterIndex, true);
			setType(binding, MysqlDefs.FIELD_TYPE_BLOB);

			binding.value = x;
			binding.isNull = false;
			binding.isLongData = true;

			if (this.connection.getUseStreamLengthsInPrepStmts()) {
				binding.bindLength = length;
			} else {
				binding.bindLength = -1;
			}
		}
	}

	/**
	 * @see java.sql.PreparedStatement#setBigDecimal(int, java.math.BigDecimal)
	 */
	public void setBigDecimal(int parameterIndex, BigDecimal x)
			throws SQLException {
		checkClosed();

		if (x == null) {
			setNull(parameterIndex, java.sql.Types.DECIMAL);
		} else {
		
			BindValue binding = getBinding(parameterIndex, false);

			if (this.connection.versionMeetsMinimum(5, 0, 3)) {
				setType(binding, MysqlDefs.FIELD_TYPE_NEW_DECIMAL);
			} else {
				setType(binding, this.stringTypeCode);
			}

			binding.value = StringUtils
				.fixDecimalExponent(StringUtils.consistentToString(x));
			binding.isNull = false;
			binding.isLongData = false;
		}
	}

	/**
	 * @see java.sql.PreparedStatement#setBinaryStream(int, java.io.InputStream,
	 *      int)
	 */
	public void setBinaryStream(int parameterIndex, InputStream x, int length)
			throws SQLException {
		checkClosed();

		if (x == null) {
			setNull(parameterIndex, java.sql.Types.BINARY);
		} else {
			BindValue binding = getBinding(parameterIndex, true);
			setType(binding, MysqlDefs.FIELD_TYPE_BLOB);

			binding.value = x;
			binding.isNull = false;
			binding.isLongData = true;

			if (this.connection.getUseStreamLengthsInPrepStmts()) {
				binding.bindLength = length;
			} else {
				binding.bindLength = -1;
			}
		}
	}

	/**
	 * @see java.sql.PreparedStatement#setBlob(int, java.sql.Blob)
	 */
	public void setBlob(int parameterIndex, Blob x) throws SQLException {
		checkClosed();

		if (x == null) {
			setNull(parameterIndex, java.sql.Types.BINARY);
		} else {
			BindValue binding = getBinding(parameterIndex, true);
			setType(binding, MysqlDefs.FIELD_TYPE_BLOB);

			binding.value = x;
			binding.isNull = false;
			binding.isLongData = true;

			if (this.connection.getUseStreamLengthsInPrepStmts()) {
				binding.bindLength = x.length();
			} else {
				binding.bindLength = -1;
			}
		}
	}

	/**
	 * @see java.sql.PreparedStatement#setBoolean(int, boolean)
	 */
	public void setBoolean(int parameterIndex, boolean x) throws SQLException {
		setByte(parameterIndex, (x ? (byte) 1 : (byte) 0));
	}

	/**
	 * @see java.sql.PreparedStatement#setByte(int, byte)
	 */
	public void setByte(int parameterIndex, byte x) throws SQLException {
		checkClosed();

		BindValue binding = getBinding(parameterIndex, false);
		setType(binding, MysqlDefs.FIELD_TYPE_TINY);

		binding.value = null;
		binding.byteBinding = x;
		binding.isNull = false;
		binding.isLongData = false;
	}

	/**
	 * @see java.sql.PreparedStatement#setBytes(int, byte)
	 */
	public void setBytes(int parameterIndex, byte[] x) throws SQLException {
		checkClosed();

		if (x == null) {
			setNull(parameterIndex, java.sql.Types.BINARY);
		} else {
			BindValue binding = getBinding(parameterIndex, false);
			setType(binding, MysqlDefs.FIELD_TYPE_VAR_STRING);

			binding.value = x;
			binding.isNull = false;
			binding.isLongData = false;
		}
	}

	/**
	 * @see java.sql.PreparedStatement#setCharacterStream(int, java.io.Reader,
	 *      int)
	 */
	public void setCharacterStream(int parameterIndex, Reader reader, int length)
			throws SQLException {
		checkClosed();

		if (reader == null) {
			setNull(parameterIndex, java.sql.Types.BINARY);
		} else {
			BindValue binding = getBinding(parameterIndex, true);
			setType(binding, MysqlDefs.FIELD_TYPE_BLOB);

			binding.value = reader;
			binding.isNull = false;
			binding.isLongData = true;

			if (this.connection.getUseStreamLengthsInPrepStmts()) {
				binding.bindLength = length;
			} else {
				binding.bindLength = -1;
			}
		}
	}

	/**
	 * @see java.sql.PreparedStatement#setClob(int, java.sql.Clob)
	 */
	public void setClob(int parameterIndex, Clob x) throws SQLException {
		checkClosed();

		if (x == null) {
			setNull(parameterIndex, java.sql.Types.BINARY);
		} else {
			BindValue binding = getBinding(parameterIndex, true);
			setType(binding, MysqlDefs.FIELD_TYPE_BLOB);

			binding.value = x.getCharacterStream();
			binding.isNull = false;